初识IOS,Label控件的应用。

初识IOS,Label控件的应用。

//

//  ViewController.m

//  Gua.test

//

//  Created by 郭美男 on 16/5/31.

//  Copyright © 2016年 西瓜大人. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

/*

 * create label function

 *

 */

- (void) uiLabel

{

    //分配内存并初始化对象

    //[[UILabel alloc] init]

    //alloc 分配内存

    //init 初始化

    UILabel* label  = [[UILabel alloc] init];

    label.text = @"hi,我是西瓜大人";

    //X,Y,长，宽

    label.frame = CGRectMake(120, 280, 160, 100);

    //控件背景色

    label.backgroundColor = [UIColor clearColor];

    //self.view.backgroundColor=[UIColor darkGrayColor];

    //增加至主窗体

    [self.view addSubview:label];

    //控件背景色

    label.backgroundColor = [UIColor darkGrayColor];

    //控件字体大小

    label.font = [UIFont systemFontOfSize:18];

    //控件内字体是否偏移

    label.shadowOffset = CGSizeMake(2, 2);

    label.shadowColor = [UIColor grayColor];

    //控件内文字label内位置，默认居左。

    label.textAlignment = NSTextAlignmentCenter;

    //控件内显示字体行数,0则为自动换行

    label.numberOfLines = 0;

}

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    NSLog(@"this is one ios project");

    [self uiLabel];

    [self uiButton];

    //self.view.backgroundColor = [UIColor blueColor];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end